Add 5/30 and 1/21
5/30 + 1/21 is 3/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
5/30 = 5 × 7/30 × 7 = 35/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
1/21 = 1 × 10/21 × 10 = 10/210 - Add the two like fractions:
35/210 + 10/210 = 35 + 10/210 = 45/210 - 45/210 simplified gives 3/14
- So, 5/30 + 1/21 = 3/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30+1/21 5/30+2/21 5/60+1/21 5/30+1/42 15/30+1/21 5/30+3/21 5/90+1/21 5/30+1/63 25/30+1/21 5/30+5/21 35/30+1/21 5/30+7/21